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IndustryArena Forum > WoodWorking > WoodWorking Topics > Bad tapered ballnose finnishing
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  1. #1
    Join Date
    Jan 2015
    Posts
    2

    Bad tapered ballnose finnishing

    Hi !
    Can anybody explain me, please, why always my 3d reliefs looks like fluffy ONLY in the left side of model? See photo.
    I used tapered ballnose, 1 mm .
    I tried to change in Artcam raster angle many times but same (traces, fluffy, trails) effect, i also change wood piece pozition vertical and horizontal, a lot of combinations of feeds and speeds.... same bullcake
    What to do? It is possible that my spindle is not perfectly perpendicular to the table?
    Thank you !
    Attached Thumbnails Attached Thumbnails 1.jpg  

  2. #2
    Join Date
    Feb 2005
    Posts
    175

    Re: Bad tapered ballnose finnishing

    This occurs when the ballnose gets the grain against the grain. I think we all do.The solution, sand.
    Sorry for the bad translation, with an automatic translator.

  3. #3
    Join Date
    Jan 2015
    Posts
    2

    Re: Bad tapered ballnose finnishing

    Gracias! Thank you! But why not happened in both sides? Always in left side and never right side. For example, if i carve a hemisphere, only left side, like a little moon it occurs fluffy.

  4. #4
    Join Date
    Apr 2004
    Posts
    5737

    Re: Bad tapered ballnose finnishing

    Different wood species react differently to rotary cutting. What are you using? It's common to get that "fur" on one side of your cuts. Have you tried all-climb, or all-conventional instead of a meandering cut? Sharper tools do this less.
    Andrew Werby
    Website

  5. #5
    Join Date
    Mar 2003
    Posts
    35538

    Re: Bad tapered ballnose finnishing

    Use a harder wood and cut along the grain.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

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